/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controle;

import dao.Dao;
import entidades.Categoria;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Maria Eloyza
 */
public class CategoriaServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet CategoriaServlet</title>");  
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet CategoriaServlet at " + request.getContextPath () + "</h1>");
            out.println("</body>");
            out.println("</html>");
             */
        } finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String op = request.getParameter("op");
        int id = Integer.parseInt(request.getParameter("id"));
        Dao<Categoria> daoC = new Dao<Categoria>(Categoria.class);
        HttpSession session = request.getSession();
        
        if (op.equals("Remover")){
            daoC.remove(id);
            
            List<Categoria> categorias = daoC.list();
            request.setAttribute("categorias", categorias);
            
            RequestDispatcher rd = request.getRequestDispatcher("categoria.jsp");
            rd.forward(request, response);
        }
      
        if (op.equals("Editar")){
            Categoria c = daoC.get(id);
            session.setAttribute("objetoCategoria", c);
            
            response.sendRedirect("editarCategoria.jsp");
        }
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String nome = request.getParameter("categoria");
            String tipo = request.getParameter("tipoCategoria");
            String op = request.getParameter("op");
            Dao<Categoria> daoC = new Dao<Categoria>(Categoria.class);

        if (op.equals("Buscar")) {
            if (nome == null) {
                nome = "";
            }   
            
            List<Categoria> categorias = daoC.listByNomeAndTipo(nome, tipo);
          
            request.setAttribute("buscou", true);
            request.setAttribute("categorias", categorias);
        }
        if (op.equals("Inserir")){
            Categoria c = new Categoria();
            c.setNome(nome);
            c.setTipo(tipo);
            daoC.insert(c);
            
            List<Categoria> categorias = daoC.list();
            request.setAttribute("categorias", categorias);
        }
        if(op.equals("Editar")){
            HttpSession session = request.getSession(true);
            Categoria c = (Categoria) session.getAttribute("objetoCategoria");
            c.setNome(nome);
            c.setTipo(tipo);
            
            daoC.update(c);
            
            List<Categoria> categorias = daoC.list();

            session.removeAttribute("objetoCategoria");
            request.setAttribute("categorias", categorias);
        }
        RequestDispatcher rd = request.getRequestDispatcher("categoria.jsp");
        rd.forward(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
